Majd Darwish (1)* Olla Kajo(1) and Ahmad Darwish(1)
(1). Department of Field Crops. Faculty of Agriculture. Tishreen University. Lattakia. Syria.
(*Corresponding author: Majd Darwish. E-Mail: majds26@yahoo.com).
Received: 12/04/2022 Accepted: 28/07/2022
Abstract:
The research was carried out in one of the lands of Ras Al-Ain village (Jableh, Lattakia) during the 2021, the aim of studying the growth and productivity of sweet corn (Dina hybrid) under the influence of foliar spraying with gradient concentrations of gibberellic acid (50, 100, 150, 200) ppm. The results showed a significant response to the treatments of gibberellic acid spraying compared with the control, where the spraying treatment with concentrations (100 and 150) ppm improved the growth and development of corn plants through the noticeable increase in the characteristics of each of the plant height (cm) and the total leaf area (cm2) and the leaf area index And the net rate of photosynthesis (g/cm2/day), which was positively reflected on the studied yield indicators (number of ears on the plant, number of rows in grouse, number of grains in a row, and percentage of netting %) compared to other studied treatments, as for concentration spray. 200 ppm, a significant increase was observed in the yield of green ears and the refining percentage %.
Keywords: Sweet corn, Gibberellin acid, Hybrid (Dyna).
Full paper in Arabic: pdf